CN103278876A - Quantum dot color filter and manufacturing method thereof and display device - Google Patents
Quantum dot color filter and manufacturing method thereof and display device Download PDFInfo
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- CN103278876A CN103278876A CN2013102042428A CN201310204242A CN103278876A CN 103278876 A CN103278876 A CN 103278876A CN 2013102042428 A CN2013102042428 A CN 2013102042428A CN 201310204242 A CN201310204242 A CN 201310204242A CN 103278876 A CN103278876 A CN 103278876A
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Abstract
The invention relates to the technical field of displaying, in particular to a quantum dot color filter, a manufacturing method thereof and a display device. The quantum dot color filter comprises a plurality of pixels, a substrate and a filter layer, wherein each pixel comprises a plurality of color sub-pixels in different colors; at least one color sub-pixel is formed by a quantum dot material; the color of light generated by exciting the quantum dot material is the same as that of a corresponding color sub-pixel; and the filter layer is used for absorbing light rays of the non-excited quantum dot material. The color filter is formed since quantum dots can present physical features of fluorescent light of different colors under the irradiation of a backlight source, so that the transmittance of the color filter is increased, the brightness and colors of pictures are improved and enriched greatly, the display quality of images is improved, the user experience is enhanced, and meanwhile, the production cost is reduced to the maximum extent.
Description
Technical field
The present invention relates to the display technique field, particularly a kind of quantum dot colored filter and preparation method thereof and the display device that comprises this quantum dot colored filter.
Background technology
In recent years, along with development of science and technology, LCD Technology is also constantly perfect thereupon.TFT-LCD(Thin Film Transistor-Liquid Crystal Display, Thin Film Transistor (TFT)-LCD), advantages such as energy consumption low, environmental protection good with its image display quality are in occupation of the critical positions of field of display, but its color is difficult to cover colour gamut completely.The display technique based on Organic Light Emitting Diode (OLED) of Xing Qiing was also increasingly mature in recent years, its simple structure, and thin thickness, response speed is fast, can realize abundant colors more.Simultaneously, birth along with quantum dot, the quantum dot display also arises at the historic moment, because quantum dot (Quantum Dots) emission wavelength scope is extremely narrow, color is very pure, also can realize meticulous adjusting, compares with present display screen, new display screen has also reduced energy consumption when having improved brightness and picture vividness greatly.
Quantum dot is that some naked eyes can't be seen, extremely small semiconductor nanocrystal, is combined particle diameter less than 10 nanometers in the crystal by zinc, cadmium, selenium and sulphur atom.It has a distinguished characteristic: will be luminous when being subjected to electricity or light stimulus, produce light and pure color, and the light color of sending is determined by composition material and size, the shape of quantum dot.More little blue light, the more big ruddiness of more being partial to of more being partial to of size if calculate accurately, just can send bright-coloured RGB light, just in time is used as the RGB three primary colors light source of display.
Traditional LCD display, owing to need to enlarge gamut range, must improve the colour purity of colored filter, can reduce the transmittance of colored filter simultaneously, so the brightness that needs to improve backlight, increase the LCD power consumption, have now quantum dot for Backlight For Liquid Crystal Display Panels, can improve the purity of color under the situation that does not increase the colored filter color density, power consumption can not improve much yet.Therefore, the display that is applied to of quantum dot has become trend gradually.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention provides a kind of quantum dot colored filter and preparation method thereof, display device, and is limited with the colour gamut that overcomes existing colored filter, influences the more high defective of product display quality and production cost.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of quantum dot colored filter and comprise a plurality of pixels, each pixel comprises the color sub-pixel of some different colours,, described colored filter also comprises:
Underlay substrate;
At least one described color sub-pixel is formed by quanta point material, and the light that produces after described quanta point material is excited is identical with the color of corresponding described color sub-pixel;
Filter layer, it is arranged at the color sub-pixel zone that is formed by quanta point material, is used for absorbing the not light of excitation quantum point material.
Further, the thickness 0.2 μ m～0.7 μ m of described filter layer.
Further, described filter material is the Yellow photosensitive resin combination, and described Yellow photosensitive resin combination comprises alkali soluble resin, polymerisable monomer, initiating agent, yellow uitramarine, spreading agent, adjuvant and solvent.
Further, described color sub-pixel comprises red sub-pixel, green sub-pixels and blue subpixels,
Described red sub-pixel is formed by red quanta point material, and described green sub-pixels is formed by green quanta point material; Described blue subpixels is formed or is formed by transparent material by blue quanta point material.
Further, described color sub-pixel also comprises yellow sub-pixel,
Described yellow sub-pixel is formed by yellow quanta point material.
Further, described colored filter also comprises black matrix, and described black matrix is used for separating the color sub-pixel of different colours.
Further, described colored filter also comprises protective seam, and described protective seam covers described pixel and described black matrix, and described protective seam is transparent material.
Further, described quanta point material is at least a in zinc sulphide, zinc paste, gallium nitride, zinc selenide, cadmium sulfide, gallium selenide, cadmium selenide, zinc telluridse, cadmium telluride, gallium arsenide, indium phosphide, the lead telluride.
On the other hand, the present invention also provides a kind of display device, comprises above-mentioned quantum dot colored filter and backlight, the wavelength of the light that the wavelength of the light that described backlight sends produces after being excited less than the quanta point material in the described colored filter.
Further, described backlight is blue backlight; Described red sub-pixel in the described quantum dot colored filter is formed by red quanta point material, described green sub-pixels is formed by green quanta point material, described blue subpixels is formed by transparent material, described blue subpixels zone does not arrange described filter layer, other described color sub-pixel zones are provided with filter layer, and described filter layer absorbs blue light.
Further, described backlight is blue LED, and the wavelength coverage of emission light is 440～455nm; Described light-absorption layer absorbs light in 440～455nm scope.
Further, described backlight is the ultraviolet backlight; Red sub-pixel is formed by red quanta point material described in the described colored filter, described green sub-pixels is formed by green quanta point material, described blue subpixels is formed by blue quanta point material, each described color sub-pixel zone is provided with filter layer, and described filter layer absorbs ultraviolet light.
On the one hand, the present invention also provides a kind of quantum dot color filter making method again, and described colored filter comprises a plurality of pixels, and each pixel is made up of the color sub-pixel of some different colours, and described method comprises:
Form the figure of filter layer;
Form the figure of color sub-pixel, specifically comprise: the color sub-pixel zone of different colours forms color sub-pixel by the quanta point material of corresponding color.
Further, also comprise the black matrix of formation;
And/or formation protective seam.
Further, described method comprises:
Form the figure of filter layer, the blue subpixels zone of wherein said colored filter does not arrange filter layer;
Form black matrix, the different color sub-pixel zone that described black matrix is separated out;
Red sub-pixel zone at described colored filter forms red sub-pixel by red quanta point material, green subpixel areas at described colored filter forms green sub-pixels by green quanta point material, forms blue subpixels in the blue subpixels zone of described colored filter by transparent material.
Further, described method comprises:
Form the figure of filter layer, wherein, described color sub-pixel zone is provided with filter layer;
Form black matrix, the different color sub-pixel zone that described black matrix is separated out;
Red sub-pixel zone at described colored filter forms red sub-pixel by red quanta point material, green subpixel areas at described colored filter forms green sub-pixels by green quanta point material, forms blue subpixels in the blue subpixels zone of described colored filter by blue quanta point material.
Further, transparent material layer and the described protective seam in described blue subpixels zone form simultaneously.
Further, described color sub-pixel also comprises yellow sub-pixel, and described yellow sub-pixel forms by yellow quanta point material.
(3) beneficial effect
The invention provides a kind of quantum dot colored filter and preparation method thereof, display device, the physical features that utilizes quantum dot can present different colours fluorescence under the backlight irradiation forms honorable colo(u)r filter, make the transmitance of colored filter be improved, greatly improve and enriched brightness and the color of picture, effectively promoted the display quality of image, strengthen sense of experience of users, farthest reduced production cost simultaneously.
Description of drawings
The structural representation of a kind of quantum dot colored filter that Fig. 1 provides for the embodiment of the invention one;
The structural representation of the another kind of quantum dot colored filter that Fig. 2 provides for the embodiment of the invention one;
A kind of display device structure synoptic diagram that Fig. 3 provides for the embodiment of the invention two;
The structural representation of a kind of quantum dot colored filter that Fig. 4 provides for the embodiment of the invention three;
The structural representation of a kind of display device that Fig. 5 provides for the embodiment of the invention four;
Fig. 6 is intended to for the structure of the another kind of display device that the embodiment of the invention four provides;
The quantum dot color filter making method process flow diagram that Fig. 7 provides for the embodiment of the invention five.
Among the figure: 11: underlay substrate, 12: filter layer, 13: black matrix, 14R: red sub-pixel, 14G: green sub-pixels, 14B: blue subpixels, 14Y: yellow sub-pixel; 15: protective seam, 10: colored filter, 20: array base palte, 30: liquid crystal layer, 40: backlight, 50: blue light; 60:RGB light, 70: luminescent panel; 80: ultraviolet light.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
Embodiment one
As shown in Figure 1, present embodiment provides a kind of colored filter, comprises a plurality of pixels, and each pixel comprises the color sub-pixel of some different colours, and this colored filter also comprises:
Wherein, at least one color sub-pixel is formed by quanta point material, and the light that produces after described quanta point material is excited is identical with the color of corresponding described color sub-pixel;
Color sub-pixel in the present embodiment comprises red sub-pixel 14R, green sub-pixels 14G and blue subpixels 14B, and this red sub-pixel 14R is formed by red quanta point material, and described green sub-pixels 14G is formed by green quanta point material; Described blue subpixels 14B is formed by blue quanta point material.
Wherein, quantum dot is that some naked eyes can't be seen, extremely small semiconductor nanocrystal, is combined particle diameter less than 10 nanometers in the crystal by zinc, cadmium, selenium and sulphur atom.It has a distinguished characteristic: will be luminous when being subjected to electricity or light stimulus, produce light and pure color, and the light color of sending is determined by composition material and size, the shape of quantum dot.Quantum dot in the present embodiment is at least a in zinc sulphide, zinc paste, gallium nitride, zinc selenide, cadmium sulfide, gallium selenide, cadmium selenide, zinc telluridse, cadmium telluride, gallium arsenide, indium phosphide, the lead telluride, certainly, the material of this quantum dot includes but are not limited to: above-mentioned enumerate out several, has to have same or analogous other materials with above-mentioned substance and can be suitable for too.
Preferably, in order to prevent that red sub-pixel layer and green sub-pixels and blue subpixels from appearing the light source colour of backlight, can absorb the filter layer of backlight glass substrate setting, the color sub-pixel that the light of backlight forms through quanta point material earlier, excitation quantum point material backlight sends the light of respective color, not the light of excitation quantum point material after filtration photosphere be filtered, the light of the respective color that quanta point material sends can see through filter layer.The physical features that utilizes quantum dot can present different colours fluorescence under the backlight irradiation forms colored filter, make the transmitance of colored filter be improved, greatly improve and enriched brightness and the color of picture, effectively promoted the display quality of image, strengthen sense of experience of users, farthest reduced production cost simultaneously.
In order to absorb the light of backlight preferably, farthest reduce the thickness of display panel simultaneously, the thickness of filter layer 12 is set to 0.2～0.7 μ m.Wherein, filter layer 12 materials are UV absorbers.UV absorbers need be launched the wavelength coverage selection of light according to backlight, the filter layer that UV absorbers forms can effectively absorb through the color sub-pixel zone but the ultraviolet light of excitation quantum point material not, can see through the visible light (RGB visible light) that quanta point material is launched simultaneously.
Quantum dot colored filter in the present embodiment is by arranging the filter layer of being made by UV absorbers, can effectively sponge in the backlight light the not luminous light of excitation quantum point material, make the light corresponding with color sub-pixel be able to by, strengthen the color saturation of color sub-pixel, and then improved display quality.
In addition, this colored filter also comprises black matrix 13 and protective seam 15, and wherein black matrix 13 is used for the color sub-pixel of separation different colours, prevents that bias light from leaking, and improves to show contrast, prevents the purity of colour mixture and increase color; Protective seam 15 covers described pixel and described black matrix, is used for comprising color sub-pixel and black matrix, and protective seam 15 is transparent material.
In addition, for the color saturation that enriches display effect more and make colour gamut more wide, this color sub-pixel layer also comprises yellow sub-pixel 14Y, and this yellow sub-pixel 14Y is formed by yellow quanta point material.This yellow sub-pixel zone arranges filter layer.With reference to figure 2.
Embodiment two
As shown in Figure 3, provide a kind of display device in the present embodiment, comprise the colored filter 10 among the embodiment one, also comprise array base palte 20 and backlight 40.Be provided with liquid crystal layer 30 between this colored filter 10 and the array base palte 20 and form liquid crystal panel.Wherein, backlight 40 is the ultraviolet backlight.Red sub-pixel 14R is formed by red quanta point material in the colored filter 10, green sub-pixels 14G is formed by green quanta point material, blue subpixels 14B is formed by blue quanta point material, and each color sub-pixel zone is provided with filter layer 12, and filter layer 12 is used for absorbing ultraviolet light 80.
Need to prove, the color sub-pixel that the light of the ultraviolet backlight in the present embodiment forms through quanta point material earlier, the ultraviolet excitation quanta point material sends the light of respective color, not the ultraviolet light of excitation quantum point material after filtration photosphere be filtered, the light of the respective color that quanta point material sends can see through filter layer.
The ultraviolet light that the ultraviolet backlight sends is separately converted to redness, green and blue RGB (RGB) light 60 through the red sub-pixel, green sub-pixels and the blue subpixels that are formed by quanta point material of colored filter 10, do not have the ultraviolet light of excitation quantum point material then to be absorbed by filter layer, realize the colorful light-permeable of quantum dot colored filter.
This display device can be LCD, Organic Light Emitting Diode (OLED), liquid crystal panel, LCD computer or other display device.Colored filter among this display device employing embodiment greatly improves and has enriched brightness and the color of picture, has effectively promoted the display quality of image, strengthens sense of experience of users.
Embodiment three
As shown in Figure 4, present embodiment provides a kind of colored filter, comprises a plurality of pixels, and each pixel comprises the color sub-pixel of some different colours, and this colored filter also comprises:
Wherein, at least one color sub-pixel is formed by quanta point material, and the light that produces after described quanta point material is excited is identical with the color of corresponding described color sub-pixel;
Color sub-pixel in the present embodiment comprises red sub-pixel 14R, green sub-pixels 14G and blue subpixels 14B, and this red sub-pixel 14R is formed by red quanta point material, and described green sub-pixels 14G is formed by green quanta point material; Described blue subpixels 14B is formed by transparent material.
Wherein, quantum dot is that some naked eyes can't be seen, extremely small semiconductor nanocrystal, is combined particle diameter less than 10 nanometers in the crystal by zinc, cadmium, selenium and sulphur atom.It has a distinguished characteristic: will be luminous when being subjected to electricity or light stimulus, produce light and pure color, and the light color of sending is determined by composition material and size, the shape of quantum dot.Quantum dot is at least a in zinc sulphide, zinc paste, gallium nitride, zinc selenide, cadmium sulfide, gallium selenide, cadmium selenide, zinc telluridse, cadmium telluride, gallium arsenide, indium phosphide, the lead telluride, certainly, the material of this quantum dot includes but are not limited to: the above-mentioned material of enumerating out, and other have and have same or analogous material with above-mentioned substance and can be suitable for too.
Preferably, in order to prevent that red sub-pixel layer and green sub-pixels from appearing the light source colour of backlight, therefore, can absorb the filter layer of backlight glass substrate setting, wherein, the wavelength of the light that sends of backlight gets final product less than the be excited wavelength of the light that the back produces of the quanta point material in institute's colored filter.Preferably, the thickness of filter layer is 0.2～0.7 μ m.Wherein, filter material is the Yellow photosensitive resin combination, and it is by alkali soluble resin, polymerisable monomer, initiating agent, yellow uitramarine, spreading agent, adjuvant and solvent composition.Quantum dot colored filter in the present embodiment is by arranging the filter layer of being made by the Yellow photosensitive resin combination, can effectively sponge in the backlight light the not luminous light of excitation quantum point material, make the light corresponding with color sub-pixel be able to by, strengthen the color saturation of color sub-pixel, and then improved display quality.
In addition, this colored filter also comprises black matrix 13 and protective seam 15, and wherein black matrix 13 is used for the color sub-pixel of separation different colours, prevents that bias light from leaking, and improves to show contrast, prevents the purity of colour mixture and increase color; Protective seam 15 covers described pixel and described black matrix, is used for comprising color sub-pixel and black matrix, and protective seam is transparent material.
In addition, for the color saturation that enriches display effect more and make colour gamut more wide, this color sub-pixel layer also comprises yellow sub-pixel 14Y, and this yellow sub-pixel 14Y is formed by yellow quanta point material.This yellow sub-pixel zone is provided with filter layer.
Embodiment four
As shown in Figure 5, present embodiment provides a kind of display device, comprise the colored filter 10 among the embodiment three, also comprise array base palte 20 and backlight 40, the wavelength of the light that the wavelength of blue light 50 light that backlight sends produces after being excited less than the quanta point material in the colored filter.
Backlight in the present embodiment is blue backlight, but concrete blue LED, and the wavelength coverage of its emission light is 440～455nm; This filter layer absorbs light in 440～455nm scope.Need to prove that the light of the blue backlight in the present embodiment is earlier through color sub-pixel, photosphere after filtration filters out the not bias light of excitation quantum point material again.
Wherein, color sub-pixel comprises red sub-pixel 14R, green sub-pixels 14G and blue subpixels 14B.Wherein, red sub-pixel 14R is formed by red quanta point material, green sub-pixels 14G is formed by green quanta point material, blue subpixels 14B is formed by transparent material, the blue subpixels zone does not arrange filter layer, other color sub-pixel zones are provided with filter layer, and filter layer absorbs blue light 50.Red sub-pixel and green sub-pixels that blue light forms through quanta point material, excitation quantum point material sends red light and green light respectively, red light and green light can see through filter layer, and through red sub-pixel and green subpixel areas but the blue light of excitation quantum point material is not then filtered by filter layer; Blue light still is blue light through the blue subpixels that transparent material forms.
This filter material is the Yellow photosensitive resin combination, and it is by alkali soluble resin, polymerisable monomer, initiating agent, yellow uitramarine, spreading agent, adjuvant and solvent composition.
Filter layer in the present embodiment absorbs light in 440～455nm scope, can see through the coloured light in 490-760nm zone, because the centre wavelength of red light is 630nm, so behind the red blue light process Yellow filter layer, red light portion can see through the blue light part and then be absorbed by filter layer; And the centre wavelength of green light is 550nm, and therefore, green glow still can see through behind the green-blue light process Yellow filter layer, and blue light is absorbed by the Yellow filter layer.
Blue backlight sees through after the colored filter 10, and corresponding red sub-pixel, green sub-pixels and blue subpixels send redness, green and blue RGB (RGB) light 60 respectively, realizes the colorful light-permeable of quantum dot colored filter.
Because backlight 40 is blue backlight, this blue subpixels is made by transparent material and is got final product.
With reference to figure 6, the colored filter in the present embodiment also can be applied in the Organic Light Emitting Diode (OLED), and this luminescent panel (as the oled panel of blue light-emitting) 70 replaces backlight 40.
Embodiment five
As shown in Figure 7, the embodiment of the invention provides the process of colorful filter structure among a kind of embodiment of making one, and colored filter comprises a plurality of pixels, and each pixel is made up of the color sub-pixel of some different colours, and described method comprises:
Step S10, the figure of formation filter layer.
Be specially: form the filter layer film at underlay substrate, form the figure of filter layer by composition technology.
This method specifically comprises: form the filter layer film by coating, sputter, deposition or other modes on underlay substrate, utilize the mask version that aforesaid substrate is exposed, through technologies such as developments, form the figure of filter layer.Wherein the thickness of film is 0.2～0.7 μ m.
Step S20, the black matrix of formation, the different color sub-pixel zone that described black matrix is separated out;
Be specially: spin coating or blade coating black photoresist form the black matrix figure that limits pixel region through baking behind the exposure imaging.
Step S30 is at the figure of the underlay substrate formation color sub-pixel of finishing above-mentioned steps.
Be specially: the red sub-pixel zone at described colored filter forms red sub-pixel by red quanta point material, green subpixel areas at described colored filter forms green sub-pixels by green quanta point material, forms blue subpixels in the blue subpixels zone of described colored filter by blue quanta point material.
Comprise that specifically method by transfer printing or printing will present red quanta point material and green quanta point material and blue quanta point material and be transferred in the relevant range that black matrix limits.
Step S40, the technology by spin coating are coated on protective seam on the rete after step S3 finishes.
Need to prove that the colored filter that adopts the present embodiment process to make in actual applications, needs the ultraviolet backlight to carry out fit applications.
Embodiment six
The embodiment of the invention provides the process of colorful filter structure among a kind of embodiment of making three, and colored filter comprises a plurality of pixels, and each pixel is made up of the color sub-pixel of some different colours, and described method comprises:
Step S10 ', the figure of formation filter layer.
Be specially: form the filter layer film at underlay substrate, form the figure of filter layer by composition technology.
This method specifically comprises: form the filter layer film by coating, sputter, deposition or other modes on underlay substrate, utilize the mask version that aforesaid substrate is exposed, through technologies such as developments, form the figure of filter layer.Wherein the thickness of film is 0.2～0.7 μ m.
Step S20 ', the black matrix of formation, the different color sub-pixel zone that described black matrix is separated out;
Be specially: spin coating or blade coating black photoresist form the black matrix figure that limits pixel region through baking behind the exposure imaging.
Step S30 ' is at the figure of the underlay substrate formation color sub-pixel of finishing above-mentioned steps.
Be specially: the red sub-pixel zone at described colored filter forms red sub-pixel by red quanta point material, green subpixel areas at described colored filter forms green sub-pixels by green quanta point material, forms blue subpixels in the blue subpixels zone of described colored filter by transparent material.
Comprise that specifically method by transfer printing or printing will present red quanta point material and green quanta point material and blue quanta point material and be transferred in the relevant range that black matrix limits.
In addition, when forming blue subpixels by transparent material, transparent protective seam can adopt same step to finish with transparent blue subpixels.
Need to prove that the colored filter that adopts the present embodiment process to make in actual applications, needs blue backlight to carry out fit applications.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (18)
1. a quantum dot colored filter comprises a plurality of pixels, and each pixel comprises the color sub-pixel of some different colours, it is characterized in that, described colored filter also comprises:
Underlay substrate;
At least one described color sub-pixel is formed by quanta point material, and the light that produces after described quanta point material is excited is identical with the color of corresponding described color sub-pixel;
Filter layer, it is arranged at the color sub-pixel zone that is formed by quanta point material, is used for absorbing the not light of excitation quantum point material.
2. quantum dot colored filter according to claim 1 is characterized in that, the thickness 0.2 μ m～0.7 μ m of described filter layer.
3. quantum dot colored filter according to claim 1, it is characterized in that, described filter material is the Yellow photosensitive resin combination, and described Yellow photosensitive resin combination comprises alkali soluble resin, polymerisable monomer, initiating agent, yellow uitramarine, spreading agent, adjuvant and solvent.
4. quantum dot colored filter according to claim 1 is characterized in that, described color sub-pixel comprises red sub-pixel, green sub-pixels and blue subpixels,
Described red sub-pixel is formed by red quanta point material, and described green sub-pixels is formed by green quanta point material; Described blue subpixels is formed or is formed by transparent material by blue quanta point material.
5. quantum dot colored filter according to claim 4 is characterized in that, described color sub-pixel also comprises yellow sub-pixel,
Described yellow sub-pixel is formed by yellow quanta point material.
6. according to each described quantum dot colored filter of claim 1-5, it is characterized in that described colored filter also comprises black matrix, described black matrix is used for separating the color sub-pixel of different colours.
7. quantum dot colored filter according to claim 6 is characterized in that, described colored filter also comprises protective seam, and described protective seam covers described pixel and described black matrix, and described protective seam is transparent material.
8. according to each described quantum dot colored filter of claim 1-5, it is characterized in that described quanta point material is at least a in zinc sulphide, zinc paste, gallium nitride, zinc selenide, cadmium sulfide, gallium selenide, cadmium selenide, zinc telluridse, cadmium telluride, gallium arsenide, indium phosphide, the lead telluride.
9. display device, it is characterized in that, comprise each described quantum dot colored filter and backlight as claim 1-8, the wavelength of the light that the wavelength of the light that described backlight sends produces after being excited less than the quanta point material in the described colored filter.
10. display device according to claim 9 is characterized in that, described backlight is blue backlight; Described red sub-pixel in the described quantum dot colored filter is formed by red quanta point material, described green sub-pixels is formed by green quanta point material, described blue subpixels is formed by transparent material, described blue subpixels zone does not arrange described filter layer, other described color sub-pixel zones are provided with filter layer, and described filter layer absorbs blue light.
11. display device according to claim 10 is characterized in that, described backlight is blue LED, and the wavelength coverage of emission light is 440～455nm; Described light-absorption layer absorbs light in 440～455nm scope.
12. display device according to claim 9 is characterized in that, described backlight is the ultraviolet backlight; Red sub-pixel is formed by red quanta point material described in the described colored filter, described green sub-pixels is formed by green quanta point material, described blue subpixels is formed by blue quanta point material, each described color sub-pixel zone is provided with filter layer, and described filter layer absorbs ultraviolet light.
13. a quantum dot color filter making method, described colored filter comprises a plurality of pixels, and each pixel is made up of the color sub-pixel of some different colours, it is characterized in that, described method comprises:
Form the figure of filter layer;
Form the figure of color sub-pixel, specifically comprise: the color sub-pixel zone of different colours forms color sub-pixel by the quanta point material of corresponding color.
14. method for making according to claim 13 is characterized in that, described method also comprises:
Form black matrix;
And/or formation protective seam.
15. require 14 described method for makings as requested, it is characterized in that described method comprises:
Form the figure of filter layer, the blue subpixels zone of wherein said colored filter does not arrange filter layer;
Form black matrix, the different color sub-pixel zone that described black matrix is separated out;
Red sub-pixel zone at described colored filter forms red sub-pixel by red quanta point material, green subpixel areas at described colored filter forms green sub-pixels by green quanta point material, forms blue subpixels in the blue subpixels zone of described colored filter by transparent material.
16. require 14 described method for makings as requested, it is characterized in that described method comprises:
Form the figure of filter layer, wherein, described color sub-pixel zone is provided with filter layer;
Form black matrix, the different color sub-pixel zone that described black matrix is separated out;
Red sub-pixel zone at described colored filter forms red sub-pixel by red quanta point material, green subpixel areas at described colored filter forms green sub-pixels by green quanta point material, forms blue subpixels in the blue subpixels zone of described colored filter by blue quanta point material.
17., it is characterized in that transparent material layer and the described protective seam in described blue subpixels zone form simultaneously according to the described method for making of claim 15.
18. according to claim 15 or 16 described method for makings, it is characterized in that described color sub-pixel also comprises yellow sub-pixel, described yellow sub-pixel forms by yellow quanta point material.
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| PCT/CN2013/080039 WO2014190604A1 (en) | 2013-05-28 | 2013-07-24 | Quantum dot color filter, manufacturing method therefor, and display apparatus |
| US14/373,823 US9507206B2 (en) | 2013-05-28 | 2013-07-24 | Quantum dot color filter and manufacturing method thereof, and display apparatus |
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| US9507206B2 (en) | 2016-11-29 |
| US20150301408A1 (en) | 2015-10-22 |
| WO2014190604A1 (en) | 2014-12-04 |
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